Question

Why are aquatic organisms ammoneatelic, while humans are ureotelic?​

Answer 1

Answer:

Terrestrial adaptation requires the production of lesser toxic nitrogenous wastes like urea, as urea is less toxic and less soluble in water. This is important adaptation for water conservation in animals body. Mammals, many terrestrial amphibians and marine fishes mainly excrete urea and are called ureotelic animals.